Quadratic Formula

Directions: Using the digits 1 to 9, at most one time each for a, b, and c, find the result with the greatest and least value:


What will the exponent do?
What will the radical do?


Assuming the solution can be negative, the greatest value would occur when a=2, b=9, and c=1 (solution = -0.11). The least value, found by Robert Hays, would occur when a=1, b=9, c=2 (solution = -8.77)

Source: Dane Ehlert

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  1. I agree with the largest value a=2, b=9, c=1 ( solution = 0.11 )

    The smallest value I found was a=1, b=9, c=2 ( solution = -8.77 )

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